Application of double grid cathode for improvement of neutron yield in IEC device

Heung Jin Ju, Kwang Cheol Ko

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Recently, in order to improve a neutron yield in an Inertial Electrostatic Confinement (IEC) device operating at a glow discharge mode, various techniques have been performed, such as injection of plasma ion source, introduction of multi-grid configuration, coating electrode with titanium, magnetic assisted IEC device, and so on. However, these techniques lead to the complicated structure of a device which limits the flexibility of the shape design and are not easy to make an IEC device compact and portable. In this research, we have proposed a new configuration for the yield improvement without additionally external ion sources; an application of a double grid cathode. A neutron yield in an IEC device is proportional to the ion current and is closely related to the potential well structure inside the cathode. Therefore, when a double grid cathode is applied to an IEC device, the high electric field strength near the cathode is generated and thus, the high neutron production rate will be obtained. These facts are verified as compared with the ion current calculated at both single and double grid cathode shape. Additionally, ion's lives and trajectories are examined in various grid cathode configurations and cathode voltages by using a numerical simulation.

Original languageEnglish
Title of host publicationProceedings of the 2010 IEEE International Power Modulator and High Voltage Conference, IPMHVC 2010
Pages674-678
Number of pages5
DOIs
StatePublished - 2010 Dec 1
Event2010 IEEE International Power Modulator and High Voltage Conference, IPMHVC 2010 - Atlanta, GA, United States
Duration: 2010 May 232010 May 27

Other

Other2010 IEEE International Power Modulator and High Voltage Conference, IPMHVC 2010
CountryUnited States
CityAtlanta, GA
Period10/05/2310/05/27

Fingerprint

Electrostatics
Neutrons
Cathodes
Ion sources
Ions
Glow discharges
Titanium
Electric fields
Trajectories
Plasmas
Coatings
Electrodes
Computer simulation
Electric potential

Keywords

  • double grid cathode
  • Inertial Electrostatic Confinement device
  • ion current
  • neutron yield
  • numerical simulation

Cite this

Ju, H. J., & Ko, K. C. (2010). Application of double grid cathode for improvement of neutron yield in IEC device. In Proceedings of the 2010 IEEE International Power Modulator and High Voltage Conference, IPMHVC 2010 (pp. 674-678). [5958449] https://doi.org/10.1109/IPMHVC.2010.5958449
Ju, Heung Jin ; Ko, Kwang Cheol. / Application of double grid cathode for improvement of neutron yield in IEC device. Proceedings of the 2010 IEEE International Power Modulator and High Voltage Conference, IPMHVC 2010. 2010. pp. 674-678
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Ju, HJ & Ko, KC 2010, Application of double grid cathode for improvement of neutron yield in IEC device. in Proceedings of the 2010 IEEE International Power Modulator and High Voltage Conference, IPMHVC 2010., 5958449, pp. 674-678, 2010 IEEE International Power Modulator and High Voltage Conference, IPMHVC 2010, Atlanta, GA, United States, 10/05/23. https://doi.org/10.1109/IPMHVC.2010.5958449

Application of double grid cathode for improvement of neutron yield in IEC device. / Ju, Heung Jin; Ko, Kwang Cheol.

Proceedings of the 2010 IEEE International Power Modulator and High Voltage Conference, IPMHVC 2010. 2010. p. 674-678 5958449.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

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Ju HJ, Ko KC. Application of double grid cathode for improvement of neutron yield in IEC device. In Proceedings of the 2010 IEEE International Power Modulator and High Voltage Conference, IPMHVC 2010. 2010. p. 674-678. 5958449 https://doi.org/10.1109/IPMHVC.2010.5958449